Antenna



FIG. 1 is a front elevational view of an antenna showing my new design,the rear elevational view being a mirror image thereof, the figure beingbroken away to indicate indeterminate length;

FIG. 2 is a front elevational view of an upper portion of the antennashown at an enlarged scale; and,

FIG. 3 is a top plan view thereof.

The ornamental design for an antenna, as shown and described.